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Here is the launcher log

[17:43:21 INFO]: Minecraft Launcher 1.6.57 (through bootstrap 100) started on windows...
[17:43:21 INFO]: Current time is Feb 24, 2016 5:43:21 PM
[17:43:21 INFO]: System.getProperty('os.name') == 'Windows 10'
[17:43:21 INFO]: System.getProperty('os.version') == '10.0'
[17:43:21 INFO]: System.getProperty('os.arch') == 'amd64'
[17:43:21 INFO]: System.getProperty('java.version') == '1.8.0_25'
[17:43:21 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[17:43:21 INFO]: System.getProperty('sun.arch.data.model') == '64'
[17:43:21 INFO]: proxy == DIRECT
[17:43:21 INFO]: JFX is already initialized
[17:43:22 INFO]: Refreshing local version list...
[17:43:22 INFO]: Refreshing remote version list...
[17:43:23 INFO]: Refresh complete.
[17:43:23 INFO]: Loaded 1 profile(s); selected 'Jason22209'
[17:43:23 INFO]: Refreshing auth...
[17:43:23 INFO]: Logging in with access token
[17:43:26 INFO]: Getting syncinfo for selected version
[17:43:26 INFO]: Queueing library & version downloads
[17:43:26 INFO]: Installed CompleteVersion{id='1.8.9', updatedTime=Tue Feb 09 03:22:32 EST 2016, releasedTime=Tue Feb 09 03:22:32 EST 2016, type=RELEASE, libraries=[Library{name='oshi-project:oshi-core:1.1', rules=null, natives=null, extract=null}, Library{name='net.java.dev.jna:jna:3.4.0', rules=null, natives=null, extract=null}, Library{name='net.java.dev.jna:platform:3.4.0', rules=null, natives=null, extract=null}, Library{name='com.ibm.icu:icu4j-core-mojang:51.2', rules=null, natives=null, extract=null}, Library{name='net.sf.jopt-simple:jopt-simple:4.6', rules=null, natives=null, extract=null}, Library{name='com.paulscode:codecjorbis:20101023', rules=null, natives=null, extract=null}, Library{name='com.paulscode:codecwav:20101023', rules=null, natives=null, extract=null}, Library{name='com.paulscode:libraryjavasound:20101123', rules=null, natives=null, extract=null}, Library{name='com.paulscode:librarylwjglopenal:20100824', rules=null, natives=null, extract=null}, Library{name='com.paulscode:soundsystem:20120107', rules=null, natives=null, extract=null}, Library{name='io.netty:netty-all:4.0.23.Final', rules=null, natives=null, extract=null}, Library{name='com.google.guava:guava:17.0', rules=null, natives=null, extract=null}, Library{name='org.apache.commons:commons-lang3:3.3.2', rules=null, natives=null, extract=null}, Library{name='commons-io:commons-io:2.4', rules=null, natives=null, extract=null}, Library{name='commons-codec:commons-codec:1.9', rules=null, natives=null, extract=null}, Library{name='net.java.jinput:jinput:2.0.5', rules=null, natives=null, extract=null}, Library{name='net.java.jutils:jutils:1.0.0', rules=null, natives=null, extract=null}, Library{name='com.google.code.gson:gson:2.2.4', rules=null, natives=null, extract=null}, Library{name='com.mojang:authlib:1.5.21', rules=null, natives=null, extract=null}, Library{name='com.mojang:realms:1.7.59', rules=null, natives=null, extract=null}, Library{name='org.apache.commons:commons-compress:1.8.1', rules=null, natives=null, extract=null}, Library{name='org.apache.httpcomponents:httpclient:4.3.3', rules=null, natives=null, extract=null}, Library{name='commons-logging:commons-logging:1.1.3', rules=null, natives=null, extract=null}, Library{name='org.apache.httpcomponents:httpcore:4.3.2', rules=null, natives=null, extract=null}, Library{name='org.apache.logging.log4j:log4j-api:2.0-beta9', rules=null, natives=null, extract=null}, Library{name='org.apache.logging.log4j:log4j-core:2.0-beta9', rules=null, natives=null, extract=null}, Library{name='org.lwjgl.lwjgl:lwjgl:2.9.4-nightly-20150209', rules=[Rule{action=ALLOW, os=null}, Rule{action=DISALLOW, os=OSRestriction{name=OSX, version='null', arch='null'}}], natives=null, extract=null}, Library{name='org.lwjgl.lwjgl:lwjgl_util:2.9.4-nightly-20150209', rules=[Rule{action=ALLOW, os=null}, Rule{action=DISALLOW, os=OSRestriction{name=OSX, version='null', arch='null'}}], natives=null, extract=null}, Library{name='org.lwjgl.lwjgl:lwjgl-platform:2.9.4-nightly-20150209', rules=[Rule{action=ALLOW, os=null}, Rule{action=DISALLOW, os=OSRestriction{name=OSX, version='null', arch='null'}}], natives={LINUX=natives-linux, OSX=natives-osx, WINDOWS=natives-windows}, [email protected]}, Library{name='org.lwjgl.lwjgl:lwjgl:2.9.2-nightly-20140822', rules=[Rule{action=ALLOW, os=OSRestriction{name=OSX, version='null', arch='null'}}], natives=null, extract=null}, Library{name='org.lwjgl.lwjgl:lwjgl_util:2.9.2-nightly-20140822', rules=[Rule{action=ALLOW, os=OSRestriction{name=OSX, version='null', arch='null'}}], natives=null, extract=null}, Library{name='org.lwjgl.lwjgl:lwjgl-platform:2.9.2-nightly-20140822', rules=[Rule{action=ALLOW, os=OSRestriction{name=OSX, version='null', arch='null'}}], natives={LINUX=natives-linux, OSX=natives-osx, WINDOWS=natives-windows}, [email protected]}, Library{name='net.java.jinput:jinput-platform:2.0.5', rules=null, natives={LINUX=natives-linux, OSX=natives-osx, WINDOWS=natives-windows}, [email protected]}, Library{name='tv.twitch:twitch:6.5', rules=null, natives=null, extract=null}, Library{name='tv.twitch:twitch-platform:6.5', rules=[Rule{action=ALLOW, os=null}, Rule{action=DISALLOW, os=OSRestriction{name=LINUX, version='null', arch='null'}}], natives={LINUX=natives-linux, OSX=natives-osx, WINDOWS=natives-windows-${arch}}, [email protected]}, Library{name='tv.twitch:twitch-external-platform:4.5', rules=[Rule{action=ALLOW, os=OSRestriction{name=WINDOWS, version='null', arch='null'}}], natives={WINDOWS=natives-windows-${arch}}, [email protected]}], mainClass='net.minecraft.client.main.Main', jar='null', minimumLauncherVersion=14}
[17:43:26 INFO]: Download job 'Version & Libraries' started (16 threads, 32 files)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.59\realms-1.7.59.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar for job 'Version & Libraries'... (try 0)
[17:43:26 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Download job 'Resources' skipped as there are no files to download
[17:43:27 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.21\authlib-1.5.21.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.21\authlib-1.5.21.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Attempting to download C:\Users\Sandra\AppData\Roaming\.minecraft\versions\1.8.9\1.8.9.jar for job 'Version & Libraries'... (try 0)
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.59\realms-1.7.59.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Finished downloading C:\Users\Sandra\AppData\Roaming\.minecraft\versions\1.8.9\1.8.9.jar for job 'Version & Libraries': Local file matches hash, using that
[17:43:27 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:00.886)
[17:43:27 INFO]: Launching game
[17:43:27 INFO]: Unpacking natives to C:\Users\Sandra\AppData\Roaming\.minecraft\versions\1.8.9\1.8.9-natives-2931565641862
[17:43:27 ERROR]: Couldn't unpack natives!
java.io.FileNotFoundException: C:\Users\Sandra\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\6.5\twitch-platform-6.5-natives-windows-64.jar (The system cannot find the path specified)
at java.util.zip.ZipFile.open(Native Method) ~[?:1.8.0_25]
at java.util.zip.ZipFile.<init>(ZipFile.java:220) ~[?:1.8.0_25]
at java.util.zip.ZipFile.<init>(ZipFile.java:150) ~[?:1.8.0_25]
at java.util.zip.ZipFile.<init>(ZipFile.java:164) ~[?:1.8.0_25]
at net.minecraft.launcher.game.MinecraftGameRunner.unpackNatives(MinecraftGameRunner.java:378) ~[launcher.jar:1.6.57]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:111) [launcher.jar:1.6.57]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:186) [launcher.jar:1.6.57]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:1.6.57]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:1.6.57]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:1.6.57]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]

I found a fix!

Uninstall your existing copy of minecraft, export any saves if required. Go to http://www.minecraft.net/download -- click on "Show all platforms", under the Minecraft for Windows (alternative) heading, download the minecraft.exe from there instead.

Install that (plus java if required).

Confirmed working!

Quote from The_dev0»

I found a fix!

Uninstall your existing copy of minecraft, export any saves if required. Go to http://www.minecraft.net/download -- click on "Show all platforms", under the Minecraft for Windows (alternative) heading, download the minecraft.exe from there instead.

Install that (plus java if required).

Confirmed working!